Check And Clear Of The Fault History - Mitsubishi Electric FR-D720 K Series Instruction Manual

Check and clear of the fault history

4.26 Check and clear of the fault history

(1) Check for the fault history
Monitor/frequency setting
[Operation panel is
used for operation]

When an overcurrent trip occurs by an instantaneous overcurrent, the monitored current value saved in the fault history may be lower than the actual current
that has flowed.

The cumulative energization time and actual operation time are accumulated from 0 to 65535 hours, then cleared, and accumulated again from 0.
When the operation panel is used, the time is displayed up to 65.53 (65530h) in the indication of 1h = 0.001, and thereafter, it is added up from 0.
252
Fault history
[Operation for displaying fault history]
The last eight fault records can be displayed.
(On the display of the last fault record (fault record 1),
a decimal point LED is ON.)
When the fault history is empty,
Blinking
Press the
setting dial.
Blinking
Press the
setting dial.
Blinking
Press the
setting dial.
When the fault history is empty,
Parameter setting
[Parameter setting change]
is displayed.
Output frequency
Hz
Blinking

Energization time
Blinking
Fault history number
(The number of fault records is displayed.)
is displayed.

Output current
A
Blinking
Output voltage
Blinking